Fixes commit count on GIT-VERSION

AppVeyor: Fetches commit count from unshallowed upstream instead of fetching from HEAD (will always be 3 since we clone with depth of 3)

Author: AniLeo

Utilities/git-version-gen.cmd

@@ -55,8 +55,18 @@ if errorlevel 1 (
 	goto done
 )
 
+rem // Get commit count from HEAD by default
 for /F %%I IN ('call %GIT% rev-list HEAD --count') do set GIT_VERSION=%%I
-for /F %%I IN ('call %GIT% rev-parse --short HEAD') do set GIT_VERSION=%GIT_VERSION%-%%I
+
+rem // If we're in AppVeyor and we're building for master: Get commit count from unshallowed upstream
+if defined APPVEYOR (
+	if not defined APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH (
+		call %GIT% remote add upstream https://github.com/RPCS3/RPCS3.git
+		call %GIT% fetch --unshallow upstream
+		for /F %%I IN ('call %GIT% rev-list --count upstream/master') do set GIT_VERSION=%%I
+	)
+)
+
 if defined APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH (
 	if "%APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH%"=="master" (
 		for /f "tokens=1* delims=/" %%a in ("%APPVEYOR_PULL_REQUEST_HEAD_REPO_NAME%") do set user=%%a
@@ -69,6 +79,12 @@ if defined APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH (
 	for /F %%I IN ('call %GIT% rev-parse --abbrev-ref HEAD') do set GIT_BRANCH=%%I
 )
 
+rem // Get last commit (shortened) and concat after commit count in GIT_VERSION
+for /F %%I IN ('call %GIT% rev-parse --short HEAD') do set GIT_VERSION=%GIT_VERSION%-%%I
+
+rem // Echo obtained GIT_VERSION for debug purposes if needed
+echo %GIT_VERSION%
+
 rem // Don't modify the file if it already has the current version.
 if exist "%GIT_VERSION_FILE%" (
 	findstr /C:"%GIT_VERSION%" "%GIT_VERSION_FILE%" > NUL